The pair face each other again on 19 May at the Mandalay Bay resort in Las Vegas.

“I’ve started training early for this fight,” said Khan.

“I wanted to get back in the gym and get into shape. I’m going to meet Freddie [Roach, trainer] next week to train at the Wildcard Gym [in Los Angeles] and then go to the Philippines for high-altitude training.

“I always train like a challenger and I want to bring those titles back to Britain.

“We’ll see a different Amir Khan for this fight. I’ll be explosive, as always, and maybe this fight can be one of the fights of the year too.”

Peterson, who has accused Khan of arrogance, said: “I decided to take the rematch not because of anything Khan’s team said or because I feel I have to prove myself to anyone, I took it because you all thought it was a great fight and that we should do it again.

“It seems Team Khan still have problems with what happened in DC. I can only tell them that nothing shady happened, but I’m sure they won’t take my word for it.